I don't know if other people have already discovered this but I learned this today from Zapier support and thought it was worth sharing...
Normally, when you set up a filter, you have to manually type the value of the filter i.e. the number or text you'd like the filter to check. This isn't great if the thing you want to filter is dynamic and the value is different every time.
Wouldn't it be great if the filter let you pick a field from a dropdown menu (a bit like you do within an action step).
Well, apparently you can type in a special variable which will get Zapier to pull the correct variable from the appropriate step.
I explained this a bit clearer in this video hopefully: https://www.loom.com/share/7408dca840a24a439baff062ac0a586a
Again, not sure if I'm late to the game here. But I thought this was pretty cool!